Sorry, available market cap data for Regeneron Pharmaceuticals (REGN) starts on April 1, 2011. Regeneron Pharmaceuticals (REGN) has a market capitalization of $66.6B, based on 104.84M shares at a price of $635.45 (up 0.5% on Friday).

DATE	OPEN	HIGH	LOW	CLOSE	VOLUME
December 31 1992	$11.41	$12.15	$10.91	$11.90	77,800
December 30 1992	$10.91	$11.41	$10.91	$11.41	59,500
December 29 1992	$10.41	$11.41	$10.41	$10.91	70,500
December 28 1992	$10.41	$10.91	$10.41	$10.41	44,000
December 24 1992	$10.66	$11.16	$10.41	$10.91	39,600
December 23 1992	$11.65	$11.90	$10.66	$10.66	30,900
December 22 1992	$12.15	$12.15	$11.65	$11.65	12,200
December 21 1992	$11.65	$12.15	$11.65	$11.65	8,200
December 18 1992	$11.65	$12.15	$11.65	$12.15	15,000
December 17 1992	$12.15	$12.15	$11.65	$12.15	8,300
December 16 1992	$11.65	$12.15	$11.65	$12.15	58,500
December 15 1992	$11.90	$12.65	$11.65	$11.65	12,100
December 14 1992	$11.90	$12.65	$11.90	$12.15	35,500
December 11 1992	$12.65	$13.14	$11.90	$11.90	26,300
December 10 1992	$12.89	$13.39	$12.89	$13.39	62,300
December 09 1992	$14.13	$14.13	$12.89	$13.27	114,500
December 08 1992	$13.64	$14.13	$13.64	$14.13	83,000
December 07 1992	$14.13	$14.13	$13.39	$13.51	62,800
December 04 1992	$13.89	$14.13	$13.39	$14.13	33,700
December 03 1992	$13.89	$13.89	$13.39	$13.39	26,100
December 02 1992	$13.89	$13.89	$13.39	$13.89	16,200
December 01 1992	$13.89	$14.13	$13.39	$13.64	117,200
November 30 1992	$13.89	$13.89	$13.39	$13.89	20,900
November 27 1992	$13.39	$14.13	$13.39	$13.39	20,100
November 25 1992	$14.13	$14.13	$13.64	$13.64	41,800